The week in photos

Former Florida Gov. Charlie Crist kisses volunteer Edouine Belot, of Fort Lauderdale on the head during a visit to a phone bank, Monday, Aug. 25, 2014, in Fort Lauderdale. Crist is running against Nan Rich for the Democratic nomination for Florida governor. The state's primary election is Tuesday.

Liberian security forces with riot gear stop people on Monday, Aug. 25, 2014, from leaving the West Point area that has been hardest hit by the Ebola virus spreading in Monrovia. A Liberian doctor who was among three Africans to receive an experimental Ebola drug has died, the country's information minister said on Monday.

Palestinian children sit in the back of their family car while chanting slogans as they celebrate the cease-fire between Palestinians and Israelis in the northern Gaza Strip, Aug. 26, 2014. Israel and Hamas agreed Tuesday to an open-ended cease-fire, halting a seven-week war that has killed more than 2,200 people, mostly Palestinians. It also has left tens of thousands in Gaza homeless and devastated entire neighborhoods in the blockaded territory.

Investigators look over the wreckage of a plane on the side of a road Tuesday, Aug. 26, 2014, in Richmond Heights, Ohio. The Cessna 172R crashed and burst into flames just after takeoff from a regional airport outside Cleveland on Monday, killing all four people on board, according to the Ohio State Highway Patrol.

Russian President Vladimir Putin (left), EU foreign policy chief Catherine Ashton, Belarusian President Alexander Lukashenko, and Ukrainian President Petro Poroshenko (right), walk to hold talks in Minsk, Belarus, Tuesday, Aug. 26, 2014. Leaders of Russia, Belarus, two other former Soviet republics, as well as top EU officials, are meeting for a highly anticipated summit to discuss the crisis in Ukraine, which has left more than 2,000 dead and displaced over 300,000 people.

Yes campaign placards are placed in a field on Aug. 26, 2014, in Fenwick, Scotland. In less than a month, voters will go to the polls to vote on whether Scotland should become an independent country.

Peter Theo Curtis smiles as he talks with reporters outside his mother's home in Cambridge, Mass., on Wednesday, Aug. 27, 2014. Curtis, a freelance reporter who wrote under the byline Theo Padnos and who had been held hostage for about two years in Syria, returned to the U.S. Tuesday.

Ukrainian soldiers park their hardware on the roadside as they wait for the start of the march into the town of Mariupol, Eastern Ukraine, Wednesday, Aug. 27, 2014. Pro-Russian rebel forces entered a key town of Novoazovsk in southeastern Ukraine on Wednesday after three days of heavy shelling, the town's mayor said, capturing new territory far from most of their battles with government troops.

EU Commission President Jose Manuel Barroso (left), German Chancellor Angela Merkel and Federal Chancellor Werner Faymann (right) are shown at the opening of the German government Balkan conference at the Chancellery on Aug. 28, 2014, in Berlin, Germany. The leaders of Albania, Kosovo, Croatia, Bosnia-Herzegovina, Slovenia, Serbia, Montenegro and Macedonia are participating in the conference, as is Austrian Chancellor Werner Faymann.

Calling on President Barack Obama to end deportation of undocumented immigrants, activists gather outside the U.S. Immigration and Customs Enforcement building in Washington, D.C.

M.Scott Mahaskey/POLITICO

British Prime Minister David Cameron speaks to the media during a news conference at Downing Street on Aug. 29, 2014, in London. The prime minister is to introduce legislation to make it harder for Britons to travel to Syria and Iraq to fight for Islamist State. Earlier today, the British Home Secretary Theresa May announced that Britain has raised its international terrorism threat level to "severe," indicating that a terrorist attack is "highly likely."

Texas Gov. Rick Perry speaks at the Defending the American Dream Summit, sponsored by Americans For Prospertity at the Omni Hotel on Aug. 29, 2014, in Dallas.

Former Virginia Gov. Bob McDonnell (center) arrives for trial at U.S. District Court with his daughter Jeanine and sons Bobby (right) and Sean on Aug. 29, 2014, in Richmond, Va. McDonnell and his wife, Maureen, are on trial for accepting gifts, vacations and loans from a Virginia businessman in exchange for helping his company, Star Scientific.